Spraying machine



April 19, 1932. H. c. COLE SPRAYNGMACHINE 2 Sheets-Sheet l Filed NOV.11, 1931 Mns/vra@ l am, c am IWI-Ms'Y S.-

, y y Wm SMM l yApril 19, 1932.

H. C. COLE SPRYING MACHINE 2 Sheets-Sheet 2 Filed Nov. ll, 1931 PatentedApr. 19,; 1932 UNITED STATES PATENT OFFICE HARRY C. COLE, FPHILADELPHIA, PENNSYLVANIA SPRAYING MACHINE l Application filed November11, 1931. Serial No. 574,309.

The principal objects of the present invention are to spray any quantityof liquid or fluid of any kind'and to control the quantity sprayed evento arresting and restarting the spray, to do this automatically inresponse to the speed of the machine which feeds the web, sheet or thelike which is to be sprayed, and to avoid the use of oriicesl orthe'like for controlling the flow of the liquid or fluid that is sprayedby air jets. Other objects of the invention will appear from'thefollowing description. y

Generally stated, the invention comprises an inclined sluice at thelower end of which fluid orv liquid is continuously discharged, arevolving roller having its curved surface spaced from and rising toahigher level than the discharge end of the sluice and adapted to receiveat the ascending portion of its sur-m face the continuous flow from thesluice and to carry over the high part of its surface a portion of theflow fixed by the speed of the roller, the remainder of the' flowspilling oli' the surface of the roller, an inclined gutter at thedescending portion of the surface of the roller, and an-air jet arrangedto -discharge across the lower end of the gutter.

The invention also comprises the improvements to be presently describedand finally claimed.

In the following description reference will be made to the accompanyingdrawings forming'part hereof and in which Figure 1 is'a plan view withthe cover re moved.

Yindicating the similar parts.

1 is an inclined sluic'e at the lower end of which fluid or li uid iscontinuously discharged. The Hui or liquid is supplied' by a pipe 2 to areservoir 3 having aballle 4 and from this reservoir the fluid or liquidflows in a series of sluices 1. The breasts 5a at the entrances to thesluices may be made of bakelite or other porous material adapted toinsure uniform distribution between the 55. Various sluices. 5 is arevolving roller having its curved surface spaced from and rising to ahigher level than the discharge end of the sluice 1, and adapted toreceive at the descending portion of its surface the continuous flowfrom the sluice'l, and to carry over the high part or summit of itscurved sur" face a portion of the flow fixed by the speed of rotation ofthe roller, the remainder of the flow spilling olf the cylindricalsurface `m;

and over the sides of the roller. .The receptacle 6 receives the liquidor fluid rejected by the roller and that spills from the roller, and itis conveyed by pipe-7 to the pan 8 from which it can be returned orrecirculated through the reservoir 3. 9 is an inclined gutter receivingat the descending portion of` the surface of the roller the liquid orfluid carried over the top thereofand varying in quantity accordingtothe speed of rotation of the roller. 10 is an ain tube arranged todischarge across the lower end of the gutter and'create a spray asindicated in Fig. 3.- Air is supplied by pipe 11,-through passage 12 topipe 13 and thence through a hole in pipe 13 and duct 14 to jet 10. Theelements 15 are v shown as held to place by springs 16.' 17 is a covershown as provided with openings 18 for the passage of the jets; Therollers 5 are mounted on a shaft 19, which can be driven by some partofthe machine which feeds the material to be sprayed, so that thequantity of fluid or 'liquid sprayed is controlled and increased anddiminished by the speed of the l machine, and when the machine stops thespray stops and when themachine starts the spray starts. -v It may beremarked that by reason of the feed of the liquid to the roller 5, theliquid or fluid may be of any character, because it is not picked up orpulled from a body by the roller, but is fed onto the ascending portionof the surface of the roller. Again since the quantity of liquid orfluid diverted to the gutter depends upon the speed or revolution 2 f fl 1,854,8se`

\ of the roller, no orifices are employed for controlling the feed andtheir disadvantages and difficulties are avoided. Inasmuch as the liquidor fluid flows onto the surface of the roller and spills at the endsofthe roller and down from the surfaceL it follows that the roller doesnot-have to separate the liquid or Huid by pulling it from a body ofliquid or Huid as would be the case ifbthe roller dipped in a quiescentbody of liquid or-fluid. Consequently all kinds of fluids or liquids canbe employed eventhose that are relatively viscous.

It will be obvious to those skilled in the art p to which the inventionrelates that modifications may be made in details of construction andarrangement and matters of mere form Without departing from the spiritJof the invention which is not limited to such matters or otherwise thanthe prior Aart and the appended claim may require.

I claim:

A spraying machine comprising in com bnation an inclined sluice from thelower end of Which fluid or liquid is continuously discharged, arevoluble roller -`having its curved surface spaced from and rising to ahigher level than the discharge end of the sluice and adapted to receiveat the ascendc ing portion of its surface the continuous flow from thesluice and to carry over the high part of its surface a portion of theflow fixedk bythe speed of the roller, the remainder of the flowspilling olf the surface off the roller, an inclined gutter at thedescending portion of the surface of the roller, andan air jet arrangedto Idischarge across the lower end of the gutter. i

' HARRY C. COLE.

